AAAS Annual Report 2013

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The mile-wide Margerie Glacier extends 21 miles upstream and stands 250 feet above the water's surface, with a base submerged 100 feet below sea level. A tidewater glacier named for French geographer and geologist Emmanuel de Margerie (1862-1953), it moves from the mountains to the sea. Each year, more than 430,000 people engage with science by visiting Alaska's Glacier Bay National Park and Preserve, where the Margerie Glacier is located.

Alan I. Leshner captured this photograph on 10 June 2011.

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